有三种金属元素a、b、c,在相同条件下,b的最高价氧化物的水化物的碱性比a的最高

题型:选择题

问题:

有三种金属元素a、b、c,在相同条件下,b的最高价氧化物的水化物的碱性比a的最高价氧化物的水化物的碱性强;a可以从c的盐溶液中置换出c。则这三种金属元素的金属性由强到弱的顺序是[ ]

A.a、b、c

B.b、a、c

C.b、c、a

D.c、b、a

考点:元素周期律
题型:选择题

患者,女,28岁。右 * * 外侧红肿疼痛伴发热3天。初产哺乳2周,伴口苦,心烦,大便干结。检查:体温38.8℃,右 * * 外侧红肿范围4×5,结块质硬,按之灼热,压痛明显,右腋下淋巴结肿大约2×2,有压痛。舌红,苔薄黄,脉数。

其中医证候是()

A.热毒蕴结

B.肝气郁结

C.风热外侵

D.气滞热壅

E.痰热壅盛

题型:选择题

The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others.

These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard written English; that is, pay attention to grammar, choice of words, and sentence construction. Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error.

Unless I am greatly mistaken, any apparent connection between my dog and the destroying of your petunias is purely coincidental.()

A. connection between my dog and the destroying of

B. connection between my dog and the destruction of

C. connection of my dog with the destruction of

D. connection between my dog and the destroying to

E. connection from my dog with the destruction to

题型:选择题

微生物的概念与特点?

题型:选择题

在GSM网中,BCC和NCC主要用途()。

题型:选择题

某热力公司生产占地13000平方米,当地规定的城镇土地使用税额为每平方米5元,本年取得供热收入4500万元,其中向居民供热的收入1500万元,其他为向医院等单位供热收入。热力公司本年应缴纳的城镇土地使用税是( )。

A.免税

B.21666.67元

C.43333.33元

D.65000元

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